u/Valuable-Paramedic-8

Hi everyone,

As i posted before, I recently bought what appears to be a replica of a Bill Fitzmaurice Tuba 60 dual12". After comparing it with the plans and getting opinions from several people, I'm confident it's based on a dual 12" Tuba 60 design.

However, it's not an exact copy. The cabinet is about 79 cm wide instead of the 76 cm width of the original plans, so it's roughly 4% wider.

I'm planning to load it with two Eminence LAB12 drivers.

My questions are:

• How much would increasing the width by about 4% affect the horn's performance if the rest of the horn geometry is unchanged?
• Has anyone here built or measured a widened Tuba 60?
• Should I expect any noticeable loss in performance, or is this considered a minor modification?

I'd really appreciate any experience, Hornresp simulations, or measurements.

Thanks!

Ps: if someone could help me identify the top speaker id be appreciated, someone said its the tuba45, any confirmation?

I'm trying to identify this DIY dual 15" bass cabinet so I can buy the correct drivers and hopefully build more of them.

What I know:

• Approx. dimensions: 152 × 79 × 76.5 cm

• Holds 2 × 15" drivers

• Both drivers fire into the same internal chamber

• Previous owner recommended Fane Sovereign 15-400LF or the Box Speaker 15-300/8-A, but I don't know if those are the original drivers.

I'm hoping someone actually recognises this cabinet, knows what design it is based on, or has seen these before. Even if you don't recognise the exact cabinet, I'd appreciate any clues about what design it might be based on.

I've attached all the photos I have.

Thanks!

I'm trying to identify this DIY dual 15" bass cabinet so I can buy the correct drivers and hopefully build more of them.

What I know:

-Approx. dimensions: 152 × 79 × 76.5 cm -Holds 2 × 15" drivers -Both drivers fire into the same internal chamber -Previous owner recommended Fane Sovereign 15-400LF or the box Speaker 15-300/8-A, but I don't know if those are the original drivers.

I'm hoping someone actually recognises this cabinet, knows what design it is based on, or has seen these before. Even if you dont recognise the exact cabinet, id appreciate any clues about what design it might be based on

I've attached all the photos I have.

Thanks!